Deep copy of QTabWidget pages advise/workaround?

I've used Qt Creator (Designer) to design the QMainWindow with a child QTabWidget that has different designs of QWidget pages. Each page has a different mix of buttons, comboboxes, labels and QTableWidget tables

When I run my Python app, I load the Qt front end in and I delete the tab pages to start from a blank QTabWidget. Then I want to be able to have multiple instances of my QWidget pages to appear that I designed earlier. I guess I want to be able to do a deep copy of these QWidget pages (that keeps all the layouts, buttons, comboboxes and QTableWidget tables that I designed) so that I can load them with different data. What's the best approach to do this?